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Definition
| layer of gases that surround a planet |
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nitrogen (78%)
oxygen (21%)
water vapor, carbon dioxide (1%) |
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| stabilizes surface temperature |
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| ozone layer protects us from harmful U.V. rays |
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| live in troposphere (closest to earth) |
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| temperature changes as you move one layer to another |
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| pressure caused by air molecules above (greatest at surface) |
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| ozone layer protects us against U.V. rays |
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| absorbs energy from U.V. rays |
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| layer destroyed by CFCs (found in aerosol sprays and refrigerators) |
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| ozone hole forming over antartica |
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| some govt's have banned CFCs |
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| energy that flows from a hotter object to a cooler object |
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| energy transferred by waves |
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| energy transferred by currents (air or water) |
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| when water changes to water vapor |
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| when water vapor changes to water |
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| when water droplets fall from clouds |
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| water in streams and rivers |
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| pressure caused by air molecules above |
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| areas near equator with little wind |
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